Oil burning apparatus



Sept. 17, 1940. A. VON HAASE OIL BURNING APPARATUS Filed Deb. 28, 1939' I 2 Sheets- Sheet 1' Sept. 17 1940. A V HAASE r 2,215,281

on. BURNING APPARATUS v Filed Dec. 28, 1939 v 2 Sheets-Shqat 2 Patented Sept. 17, 1940 h. Bums Anthony von Haase, Ia kewjood, (ihio, assignor to Cleveland Steel Corporation, Cleveland, Ohio,

I acorporation of Ohio Application December zcldims';

This invention relates to oil burning appa-Q ratus, particularly oil burning apparatus of the pressure atomizing type: I

Oil burning apparatus of the pressure atomiz-i 6 ing type embody a casing member which houses a fan for supplying air through a blast .tube for supporting combustion. In such apparatus the fan plenum chamber isfixed and of ardeimite contour, and the usual practice is to pro-'- vide an air gate or shutter at the casing inlet.

for controlling the air intake. In theseconstructions; it is necessary to, providevdifferent' size casings and fans inorder to have. burners of different capacities, although th of the same general design.

One of the objectsofv the present construction that it is only necessaryto change the size of the fan in order toprovide forburn-J Q ers of difierent capacities.

Another object is to provide an'o Another object is to provide an 1011 burning apparatus with new and-improved meansv for controlling the flow of combustion supporting air v at the outlet side of the fan member. 1; i

' burnin apparatus of new and improved construction I A further object is to provide an oil which is economical to manufacture and easy to service.

35. with the which willbe apparentirom the'following .de-- scription', the presentinvention' consists incertain features of. construction r and combinations of I parts to behereinafter described with reference to the accompanying drawings and their claimed;

suitable In the drawings which illustrate a embodiment of the invention: v

Figure 1 is a longitudinal verticals throughthe oil burning apparatus; 1

*Figure 2 is a transverse verticalfsectlon taken substantially on the line 2-2 of Figure 1, I

Fig. 2a. is a fragmentary view showingjthe: motor-fan assembly and casing in dis-assembled;

relation, and I Figures'il, 4 and 5 are secti tially on the lines 3-3,' Hand 5-} of Flgur o welded or otherwise suitably secured to the side e burners are I inventionis to provide an oil burning apparatus of such i1 burning apparatus with a. fan housing having-a plenum.

ty of-fans .of

above and other objects I in viewj ection taken ons takensubstan-Q Referring to the accompanying' drawings in.

I which like numerals refer to like parts through- I out the several views, the oil burning apparatus I includes-a casing, Ill comprised 01- sheet metal" GArrAnA'rUs I emindsnnir gel. 2301-114) I members I I and 12;, as theenciosure.

4-1 Theperlpheral member jltisfprovided, at-the one side, with" an opening I 5 which isclosed by; a cover plate l5 secured thereto by screws-11, and, at the other side,Iwith:;a-flanged-opening I l8 to' receive a blast tube 19 which mama-be mounted therein ;in any suitable manner. :Itl is I to be noted that the-openings l5 and I8; are'at; I f the bottomportion of the casing-1 0.311; y 51 .Mounted withinpthe.'blast tube 1911s: .ang-oilzl I I tube!!! having av-nozzle Zliat its}outer,zend.ad--. I

jacent the open"end--.of. theiblast tube.,- Theoil tube 20 is supported by.-meansI ofI a'colliared; support '22 extending throughvan.:jelongated-: 5 slot- 23in. thefblast-tube and'provided withga, nut 24. The slotr23 provides a meanswhereby v the oil tube 20 'm'ay "-begmoved longitudinallywithin the blast'tube l9 to properly position-the i nozzle 2| with respect tothe open discharge end 20; I of the blast tube.,-= The oil tube-201s provided at its right end, ,asviewed' in Figure 1,=with -a fitting 25 to ,which a Isupply; conduit 26,-is' connected, the conduit extending out-through. opening 21in the side member ll, [as seenirl, Flgurez. I I jmt n i 'shown Figure the oil]v tube 20'. I A; tran'siormer- .129 "is, stcur'ed to the-peripheral ember l3: above thez blast tube .--l 9 an d.is provided with an insulator Sligex tending into the blast-tube, the terminals or-the spark-electrodes 28 being connectedt the transformer 129 by :means of conductor elements 3] extending intotheinsulator 30.; II V [I 1 Fuel oll ior combustion i'ssupplied under pres-,1. I v sure-bymeans or an oil. pumpiz connected with; I the-cond itlli 'lhe oil pump, as here shownils- I secured'by screws "to an annular member-3t which in secured {by screws; 3 a reinforcing 36, thering being preferably weld;- ed to the side member I l oi the casing; l0; as showninFieur 2, I The annular member 34 isjprovided w'lthair a penings 31, and the side member ilyis provided-f with an aperture- 3a within the.;ring 13-6. T'I'h. drive shait'lfliior'the pumpll proictsfinto I interior of the ca'sing illllthroughthe I 38., Secured 'to'. .thef end? oi! ,th eshall I! is a U-shaped coupling niember loi; f; I

'I'he-side member; is formedyw'ith. I arse aperture v ll coaxial withthe aperture fl, which .1 is chm-d by r ste m ie naua y sd w, f 43 to theside memberj'iL- A remrdrcmggan j. 44 is welded to. themember and securefd toggai it bymeans of screwsfl Iinamotorj 48. 1

The shaft. 41 ,;'.of -..the .m' tor. 46 "(projects into the interior or the casing -51 0 lthrough an open in: in the plate:member- 42.-- Remm'ablyfoe-v cured-to the Ma I p'rdvmdimd times t: ,{spgri g electrodes 28 carried. by the-s ppqrflfl-w ql, I I

by;mean er:screwli ist. I I

a (an 49 of the center intake type. The other -U-shaped coupling element 50 is secured to the end of the shaft 41 in interflttingyrelation with the'element 40, as shown in Figure 2. The mo-- 5 tor 46 thus'drives the'fan 4S and through the intermediary of the coupling comprised of elements 40 and 50, also drives the pump 32, the fan'drawing'in air through the opening 38.

By removing the screws 43, the motor 46, plate member 42 and fan 49 can be removed, the fan being withdrawn through the aperture 4|, Figure 2a showing how this isaccomplished.

The present. invention has .to do with the interior of the fan or plenum chamber, and, particularly, the scroll 5|. ,In constructions heretofore known, the scroll of plenum chamber has always been a fixed member and formed an integral part of the casing Forma, certain capacityoil burner the fan, size, was fixed and necessary tohave a fan'zof diiierentsize, andin such -case a diflferentv casing ,;was' necessary which the scroll had to-be correlated with: that fan size. Obviously, therefore, in order for a manufacturer to merchandizea series of or oil burners of"varying capacities 1 it was a, necessary to "have a different casing-for each. capacity burner; In accordance with the present invendiiierent casings for a series of different capacity" burners'has been obviated by providing the-scroll"- 5i which-will now be describedjin detail;

Referring to Figure l", the "scroll 5| iscomprisedot a sheet'of spring metal mounted betweenthe side members and ii. The right end oi-the scroll 5|, as viewed in'Figure 1, is welded or otherwise-suitably secured to angler members 52, orother suitable means, secured to atelsh'ape to approximately the horizontal plane {of the motor shaft 41 where itiswelded to sup- "ofl'." From the supporting brackets 83, the

v scrolllj extends around the'fan 49in curvilinear.

shape and terminates in a free endlia, in spaced relation with respect to the secured end, below thefan'fl'.

I The free end ilois formed with a slot 54 which receives a cylindricarmember 55 provided with shaft like extensions 56 extending-beyond the" edges of the slot 54 at the outer side-of the vscroll, asshown in Figures 1 and 3. e The memher I! is rotatably heldin position by strip-like bearingfelements 51 surrounding 'the extensions lla nd'weldedto-the scroll 5L Threadablyem tending jthrough the cylindrical member 54 is V ascrew 58, Thelei't'end of 'thescrew' '58, as I; viewed in Figure 1, extends through an opening it in'the angular portion tilfof the scroll SI and abutatheleit wall of the peripheral member II,

and the opposite end of'the screw 58 extends through the right wall of the peripheral memf 1. her It. In order to prevent longitudinal travel of the screw "it is provided witha thrust collar ll secured hereto to abutzthe'finner. surfaceof the rightwall of member it; The portion off-H the, screw J8: extending through the member 13 jg is provided withalockingnut" threaded there- .the scrolliwas correlated with that fan size-and for-anoil burner of-different capacity it was tion the necessity of providing a number of the peripheral member I! adjacent the'blastf tube as shown in Figures 1 and 5. It then extends .'at an angle toward the fan 49 'fora short distance'and then upwardlylnan arcu porting brackets 53, or othensuitable means, secured to the side members Hand I2,as shown" in Figures land4. These angular and'arcuate portionsare what may beftermed the cuton, and the end ofthe screw it is provided with slot 61.

It is tobe noted that the scroll BI is unsupported between the brackets II and screw 68, and accordingly, being of spring material, is free to hex. with the locking nut 62 threaded away from the peripheral member It, the screw ll may be rotated by inserting a screw driver inthe slot 63 to-movethe free end tia of the scroll from the position shown in solid outline in Figure l tothe position shown in broken outline and vice versa., This of course flexes the scroll 5|. It will be noted that the scroll ii in the latter position substantially closes the outlet of the fan into the chamber l4 therebelow which com municates: with the blast-tube ll.

The fan outlet is defined by the two side members II "and [2, the angle portion 8. and.

the free end liaofthe'scroll II and it will thus be observedfthat by being'able to move the-free end Ila oi thetscrollpa" fan outlet of variable size is provided, and-thesize oi this outlet can be varied .at will by rotating the screw ",and;

Another advantage is'tha't it is not necessary for the manufacturer to manufacture and stock a number of diii'erent size casings'in' order'to merchandize a line of burners of diifere'nt capacities, because the casing will-accommodate fans ofv diiferent sizes and all that is necessary to be done to adapt the casing from one size fan to another ,islto adjust the screw 5' and thereby move the scroll: 5| tothe position suitable for thefan in question;

It is to be understood that various changes may be madein theconstructionshown and described without departing from the spirit andscope of the-invention; asset forth in the appended 01811118."

whatIclaimisz' I 1. In an oil burning apparatus, an air supply casing having spaced apart walls, a curved scroll member within said casing and having rigid cut-oi!v portion and a resilient portion terminat'-' ing in a free end spaced from "said cut-0H" portion, a fan member within said scroll member and spaced therefrom, a rotatable element carried by said free end "and having a threaded opening therein, and alongitudinally immovable, screw member-threaded in'said opening for moving said flexible portion relative to said i'anj member tovary the curvature thereof.

- 2. In an oil burning apparatus, an air supply.

casinghavifig spaced apart walls, a curved scroll member within saidcasing and having a rigid g cut-oi! portion and a'resilient portion terminating in a free end spaced from said cut-off portion, a fan member within said scroll member and spaced therefrom, a rotatable element carried by said free end and having a threaded opening therein, and a longitudinally immovable screw member 1 threaded in. said opening for movingsaid flexible portion relative tosaidian member to vary the curvature thereof, said screw for access exterioriy of said casing.

. ANTHONY vox HAASE.

member extending through a wall oi said casing; v 

